Air cleaner



FIG. 1 is a perspective view of an air cleaner embodying our new design;

FIG. 2 is a right side view of the air cleaner of FIG. 1;

FIG. 3 is a left side view of the air cleaner depicted in FIG. 1;

FIG. 4 is a back view of the air cleaner depicted in FIG. 1;

FIG. 5 is a front view of the air cleaner depicted in FIG. 1;

FIG. 6 is a top plan view of the air cleaner depicted in FIG. 1;

FIG. 7 is a bottom plan view of the air cleaner of FIG. 1;

FIG. 8 is a perspective view of an air cleaner showing a second embodiment of our new design;

FIG. 9 is a right side view of the air cleaner of FIG. 8;

FIG. 10 is a left side view of the air cleaner of FIG. 8;

FIG. 11 is a back view of the air cleaner of FIG. 8;

FIG. 12 is a front view of the air cleaner of FIG. 8;

FIG. 13 is a top plan view of the air cleaner of FIG. 8; and,

FIG. 14 is a bottom plan view of the air cleaner of FIG. 8. 

The ornamental design for an air cleaner, as shown and described. 